#encoding utf-8
my_set={1,2,3,4,5,6,7,8,9,10}
print(my_set)

my_set=set([1,2,3,4])
print(my_set)

empty_set=set()
print(empty_set)

empty_set.add(1)
empty_set.add(2)
empty_set.add(3)

print(empty_set)

empty_set.remove(2)
print(empty_set)

#union 
my_set1={1,2,3,4,5}
my_set2={4,5,6}
print("{1,2,3,4,5} union {4,5,6}")
myset_all = my_set1.union(my_set2)
print(myset_all)

